Articles | Volume 19, issue 7
https://doi.org/10.5194/tc-19-2387-2025
https://doi.org/10.5194/tc-19-2387-2025
Research article
 | 
03 Jul 2025
Research article |  | 03 Jul 2025

The impact of regional-scale upper-mantle heterogeneity on glacial isostatic adjustment in West Antarctica

Erica M. Lucas, Natalya Gomez, and Terry Wilson

Data sets

Materials from Lucas et al. (2025) "The impact of regional-scale upper mantle heterogeneity on glacial isostatic adjustment in West Antarctica" E. M. Lucas et al. https://doi.org/10.20383/103.01249

Antarctica-POLENET GPS Network - BACK-Backer Island P.S. Terry Wilson et al. https://doi.org/10.7283/T5D21VWM

Antarctica-POLENET GPS Network - BERP-Bear Peninsula P.S. Terry Wilson et al. https://doi.org/10.7283/T54J0CC2

Antarctica-POLENET GPS Network - INMN-Inman Nunatak P.S. Terry Wilson et al. https://doi.org/10.7283/T52N50J2

Antarctica-POLENET GPS Network - MCRG-Miller_Crag_____ P.S. Terry Wilson https://doi.org/10.7283/0X9A-H884

Antarctica-POLENET GPS Network - MRTP-Martin_Peninsula P.S. Terry Wilson https://doi.org/10.7283/GRW7-3531

Antarctica-POLENET GPS Network - MTAK-Mount_Takahe____ P.S. Terry Wilson https://doi.org/10.7283/TJT4-RW44

Antarctica-POLENET GPS Network - SDLY-Mount Sidley P.S. Terry Wilson et al. https://doi.org/10.7283/T5S46Q7F

Antarctica-POLENET GPS Network - SLTR-Slater_Rocks____ P.S. Terry Wilson https://doi.org/10.7283/F4P1-MB62

Antarctica-POLENET GPS Network - TOMO-Toney Mountain P.S. Terry Wilson et al. https://doi.org/10.7283/T5BZ64B0

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Short summary
We investigate the effects of incorporating regional-scale lateral variability (ca. 50–100 km) in upper-mantle structure into models of Earth deformation and sea level change associated with ice mass changes in West Antarctica. Regional-scale variability in upper-mantle structure is found to impact relative sea level and crustal rate predictions for modern (last ca. 25–125 years) and projected (next ca. 300 years) ice mass changes, especially in coastal regions that undergo rapid ice mass loss.
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